Angularjs & Firebase '$timeout Is Not Defined'

Hey guys I have just been learning about angular JS and Firebase and for some reason I seem to be getting a Reference Error when I try to call the $timeout function in the followin

Solution 1:

You need declare $timeout to use it same as:

angular.module('drivenApp')
  .controller('MainCtrl', function ($scope, $timeout) {
    var rootRef = new Firebase('https://vivid-torch-5432.firebaseio.com/');
    var childRef = rootRef.child('message');

    childRef.on('value', function(snapshot){
      $timeout(function() {
        var snapshotVal = snapshot.val();
        console.log(snapshotVal);
        $scope.message = snapshot.val();
      });
    });
  });